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The Crop Factory, Steam Locomotives and the Coal Bill and more

Can Gardening be Made a Standardized Industry, Independent of the Elements?

By Alexandre Livventaal

Dismantling a City

How a Great Army Camp Is Converted into Second-Hand Building Material

By Harry A. Mount

Open-Air Mining of Coal by Electric Shovels

By G. Orb

The Welded Joint in Structural-Steel Work

By Ralph Howard

The International Trademark

Steps Toward Easier Protection of American Rights in Foreign Countries

By Chauncey P. Carter

Possum Wood

A Little-Known Forest Product That Seems Certain to Find a Place in Our Economy

By Samuel J. Record

The Laboratory in Business

How Science and Industry have Linked Hands in the Industrial Laboratory

Ohio's Flood Insurance

How the Miami Valley Plans to Stop the Next Inundation Before it Starts

By M. A. Henry

Pin-Hole Photography

Some New and Pertinent Facts About an Old but Misunderstood Art

By J. F. Springer

Laws of Air Resistance of Aerofoils, A Light-Fringe Dilatometer


  • Departments

    Correspondence - May 22, 1920

  • Inventions New and Interesting - May 22, 1920

  • Recently Patented Inventions - May 22, 1920

  • New Books, Etc. - May 22, 1920

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